network stack problem in sparc64?

[Maksim Yevmenkin]

Borja Marcos wrote:
> Hello,
> 
> I saw this some time ago but always forgot to report it.
> 
> I'm running a pair of machines with FreeBSD/sparc64 (various versions, 
> one of them is running -STABLE now), and I've seen a problem with the 
> network stack.
> 
> Looking at buffer and window sizes,
> 
> earendil# sysctl net.inet.tcp|fgrep space
> net.inet.tcp.sendspace: 0
> net.inet.tcp.recvspace: 0
> 
> earendil# sysctl net.inet.udp
> net.inet.udp.checksum: 1
> net.inet.udp.maxdgram: 0
> net.inet.udp.recvspace: 0
> 
> When I try to modify them, it doesn't work at all. For example, trying 
> to run nfcapd/nfsen in a sparc64 box, I get an error for a setsockopt() 
> call
> 
> earendil# /usr/local/etc/rc.d/nfsen start
> Starting nfsenStarting nfcpad: upstream1setsockopt(SO_RCVBUF,200000): 
> Invalid argument
> Terminated due to errors.
> nfcapd exec error: exit: 255, signal: 0, coredump: 0
> 
> 
> For x86 machines the values are correctly reported and they work as 
> expected.
> 
> I have been poking Google for this but I haven't seen any mention of this.

hmmm...  how about this (untested) patch?

--- tcp_usrreq.c.orig   Fri Nov  4 12:26:14 2005
+++ tcp_usrreq.c        Mon Sep 25 09:31:42 2006
@@ -1161,10 +1161,10 @@
   * sizes, respectively.  These are obsolescent (this information should
   * be set by the route).
   */
-u_long tcp_sendspace = 1024*32;
+int    tcp_sendspace = 1024*32;
  SYSCTL_INT(_net_inet_tcp, TCPCTL_SENDSPACE, sendspace, CTLFLAG_RW,
      &tcp_sendspace , 0, "Maximum outgoing TCP datagram size");
-u_long tcp_recvspace = 1024*64;
+int    tcp_recvspace = 1024*64;
  SYSCTL_INT(_net_inet_tcp, TCPCTL_RECVSPACE, recvspace, CTLFLAG_RW,
      &tcp_recvspace , 0, "Maximum incoming TCP datagram size");

--- udp_usrreq.c.orig   Wed Sep 13 11:19:26 2006
+++ udp_usrreq.c        Mon Sep 25 09:32:00 2006
@@ -923,12 +923,12 @@
         return (error);
  }

-u_long udp_sendspace = 9216;           /* really max datagram size */
+int    udp_sendspace = 9216;           /* really max datagram size */
                                         /* 40 1K datagrams */
  SYSCTL_INT(_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW,
      &udp_sendspace, 0, "Maximum outgoing UDP datagram size");

-u_long udp_recvspace = 40 * (1024 +
+int    udp_recvspace = 40 * (1024 +
  #ifdef INET6
                                       sizeof(struct sockaddr_in6)
  #else

thanks,
max